Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π^{+} Electroproduction off Protons in the Valence Region

S Diehl^{1

2}, A Kim¹, G Angelini³, K Joo¹, S Adhikari⁴, M Amaryan⁵, M Arratia⁶, H Atac⁷, H Avakian⁸, C Ayerbe Gayoso⁹, N A Baltzell⁸, L Barion¹⁰, S Bastami¹, M Battaglieri^{11

8}, I Bedlinskiy¹², F Benmokhtar¹³, A Bianconi^{14

15}, A S Biselli¹⁶, M Bondi¹¹, F Bossù¹⁷, S Boiarinov⁸, K-T Brinkmann², W J Briscoe³, W Brooks¹⁸, D Bulumulla⁵, V D Burkert⁸, D S Carman⁸, J C Carvajal⁴, A Celentano¹¹, P Chatagnon¹⁹, T Chetry^{20

21}, G Ciullo^{22

10}, L Clark²³, B A Clary¹, P L Cole²⁴, M Contalbrigo¹⁰, G Costantini^{14

15}, V Crede²⁵, A D'Angelo^{26

27}, N Dashyan²⁸, R De Vita¹¹, M Defurne¹⁷, A Deur⁸, C Dilks²⁹, C Djalali²¹, M Dugger³⁰, R Dupre¹⁹, H Egiyan⁸, M Ehrhart^{31

19}, A El Alaoui¹⁸, L El Fassi²⁰, L Elouadrhiri⁸, S Fegan³², A Filippi³³, T Forest³⁴, G Gavalian⁸, G P Gilfoyle³⁵, F X Girod⁸, D I Glazier²³, A A Golubenko³⁶, R W Gothe³⁷, Y Gotra⁸, K A Griffioen⁹, M Guidal¹⁹, K Hafidi³¹, H Hakobyan^{18

28}, M Hattawy⁵, F Hauenstein^{38

5}, T B Hayward⁹, D Heddle^{39

8}, K Hicks²¹, A Hobart¹⁹, M Holtrop⁴⁰, C E Hyde⁵, D G Ireland²³, E L Isupov³⁶, H S Jo⁴¹, R Johnston³⁸, S Joosten³¹, D Keller⁴², M Khachatryan⁵, A Khanal⁴, W Kim⁴¹, A Kripko², V Kubarovsky⁸, S E Kuhn⁵, L Lanza²⁶, M Leali^{14

15}, S Lee³⁸, P Lenisa^{22

10}, K Livingston²³, Z Lu⁴³, I J D MacGregor²³, D Marchand¹⁹, N Markov^{1

8}, L Marsicano¹¹, V Mascagna^{14

44}, B McKinnon²³, Z E Meziani^{31

7}, R G Milner³⁸, T Mineeva¹⁸, M Mirazita⁴⁵, V Mokeev⁸, P Moran³⁸, A Movsisyan¹⁰, C Munoz Camacho¹⁹, P Nadel-Turonski⁸, P Naidoo²³, S Nanda²⁰, K Neupane³⁷, S Niccolai¹⁹, G Niculescu⁴⁶, T R O'Connell¹, M Osipenko¹¹, M Paolone^{47

7}, L L Pappalardo^{22

10}, R Paremuzyan^{40

8}, E Pasyuk⁸, W Phelps³⁹, O Pogorelko¹², Y Prok⁵, A Prokudin^{48

8}, B A Raue^{4

8}, M Ripani¹¹, J Ritman⁴⁹, A Rizzo^{26

27}, C D Roberts⁵⁰, P Rossi^{45

8}, J Rowley²¹, F Sabatié¹⁷, C Salgado⁵¹, A Schmidt³, E P Segarra³⁸, Y G Sharabian⁸, U Shrestha²¹, P Simmerling¹, D Sokhan²³, O Soto^{45

18}, N Sparveris⁷, S Stepanyan⁸, P Stoler⁵², I I Strakovsky³, S Strauch³⁷, K Tezgin¹, A Thornton²³, N Tyler³⁷, R Tyson²³, M Ungaro⁸, L Venturelli^{14

15}, H Voskanyan²⁸, A Vossen²⁹, E Voutier¹⁹, D P Watts³², K Wei¹, X Wei⁸, S-S Xu⁵³, B Yale⁹, N Zachariou³², J Zhang⁴²; CLAS Collaboration

Affiliations

¹ University of Connecticut, Storrs, Connecticut 06269, USA.
² II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany.
³ The George Washington University, Washington, D.C. 20052, USA.
⁴ Florida International University, Miami, Florida 33199, USA.
⁵ Old Dominion University, Norfolk, Virginia 23529, USA.
⁶ University of California, Riverside, California 92521, USA.
⁷ Temple University, Philadelphia, Pennsylvania 19122, USA.
⁸ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁹ College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
¹⁰ INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
¹¹ INFN, Sezione di Genova, 16146 Genova, Italy.
¹² National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia.
¹³ Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
¹⁴ INFN, Sezione di Pavia, 27100 Pavia, Italy.
¹⁵ Università degli Studi di Brescia, 25123 Brescia, Italy.
¹⁶ Fairfield University, Fairfield, Connecticut 06824, USA.
¹⁷ IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
¹⁸ Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
¹⁹ Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
²⁰ Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
²¹ Ohio University, Athens, Ohio 45701, USA.
²² Universitá di Ferrara, 44121 Ferrara, Italy.
²³ University of Glasgow, Glasgow G12 8QQ, United Kingdom.
²⁴ Lamar University, 4400 MLK Blvd, P.O. Box 10046, Beaumont, Texas 77710, USA.
²⁵ Florida State University, Tallahassee, Florida 32306, USA.
²⁶ INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
²⁷ Università di Roma Tor Vergata, 00133 Rome Italy.
²⁸ Yerevan Physics Institute, 375036 Yerevan, Armenia.
²⁹ Duke University, Durham, North Carolina 27708-0305, USA.
³⁰ Arizona State University, Tempe, Arizona 85281, USA.
³¹ Argonne National Laboratory, Argonne, Illinois 60439, USA.
³² University of York, York YO10 5DD, United Kingdom.
³³ INFN, Sezione di Torino, 10125 Torino, Italy.
³⁴ Idaho State University, Pocatello, Idaho 83209, USA.
³⁵ University of Richmond, Richmond, Virginia 23173, USA.
³⁶ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
³⁷ University of South Carolina, Columbia, South Carolina 29208, USA.
³⁸ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
³⁹ Christopher Newport University, Newport News, Virginia 23606, USA.
⁴⁰ University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
⁴¹ Kyungpook National University, Daegu 41566, Republic of Korea.
⁴² University of Virginia, Charlottesville, Virginia 22901, USA.
⁴³ School of Physics, Southeast University, Nanjing 211189, Jiangsu, China.
⁴⁴ Università degli Studi dell'Insubria, 22100 Como, Italy.
⁴⁵ INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
⁴⁶ James Madison University, Harrisonburg, Virginia 22807, USA.
⁴⁷ New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA.
⁴⁸ Science Division, Penn State University Berks, Reading, Pennsylvania 19610, USA.
⁴⁹ Institute fur Kernphysik (Juelich), Juelich, Germany.
⁵⁰ School of Physics and Institute for Nonperturbative Physics, Nanjing University, Nanjing 210093, Jiangsu, China.
⁵¹ Norfolk State University, Norfolk, Virginia 23504, USA.
⁵² Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA.
⁵³ School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu, China.

PMID: 35213183
DOI: 10.1103/PhysRevLett.128.062005

Free article

Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π^{+} Electroproduction off Protons in the Valence Region

S Diehl et al. Phys Rev Lett. 2022.

Free article

. 2022 Feb 11;128(6):062005.

doi: 10.1103/PhysRevLett.128.062005.

Authors

Affiliations

¹ University of Connecticut, Storrs, Connecticut 06269, USA.
² II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany.
³ The George Washington University, Washington, D.C. 20052, USA.
⁴ Florida International University, Miami, Florida 33199, USA.
⁵ Old Dominion University, Norfolk, Virginia 23529, USA.
⁶ University of California, Riverside, California 92521, USA.
⁷ Temple University, Philadelphia, Pennsylvania 19122, USA.
⁸ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁹ College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
¹⁰ INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
¹¹ INFN, Sezione di Genova, 16146 Genova, Italy.
¹² National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia.
¹³ Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
¹⁴ INFN, Sezione di Pavia, 27100 Pavia, Italy.
¹⁵ Università degli Studi di Brescia, 25123 Brescia, Italy.
¹⁶ Fairfield University, Fairfield, Connecticut 06824, USA.
¹⁷ IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
¹⁸ Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
¹⁹ Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
²⁰ Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
²¹ Ohio University, Athens, Ohio 45701, USA.
²² Universitá di Ferrara, 44121 Ferrara, Italy.
²³ University of Glasgow, Glasgow G12 8QQ, United Kingdom.
²⁴ Lamar University, 4400 MLK Blvd, P.O. Box 10046, Beaumont, Texas 77710, USA.
²⁵ Florida State University, Tallahassee, Florida 32306, USA.
²⁶ INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
²⁷ Università di Roma Tor Vergata, 00133 Rome Italy.
²⁸ Yerevan Physics Institute, 375036 Yerevan, Armenia.
²⁹ Duke University, Durham, North Carolina 27708-0305, USA.
³⁰ Arizona State University, Tempe, Arizona 85281, USA.
³¹ Argonne National Laboratory, Argonne, Illinois 60439, USA.
³² University of York, York YO10 5DD, United Kingdom.
³³ INFN, Sezione di Torino, 10125 Torino, Italy.
³⁴ Idaho State University, Pocatello, Idaho 83209, USA.
³⁵ University of Richmond, Richmond, Virginia 23173, USA.
³⁶ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
³⁷ University of South Carolina, Columbia, South Carolina 29208, USA.
³⁸ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
³⁹ Christopher Newport University, Newport News, Virginia 23606, USA.
⁴⁰ University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
⁴¹ Kyungpook National University, Daegu 41566, Republic of Korea.
⁴² University of Virginia, Charlottesville, Virginia 22901, USA.
⁴³ School of Physics, Southeast University, Nanjing 211189, Jiangsu, China.
⁴⁴ Università degli Studi dell'Insubria, 22100 Como, Italy.
⁴⁵ INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
⁴⁶ James Madison University, Harrisonburg, Virginia 22807, USA.
⁴⁷ New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA.
⁴⁸ Science Division, Penn State University Berks, Reading, Pennsylvania 19610, USA.
⁴⁹ Institute fur Kernphysik (Juelich), Juelich, Germany.
⁵⁰ School of Physics and Institute for Nonperturbative Physics, Nanjing University, Nanjing 210093, Jiangsu, China.
⁵¹ Norfolk State University, Norfolk, Virginia 23504, USA.
⁵² Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA.
⁵³ School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu, China.

PMID: 35213183
DOI: 10.1103/PhysRevLett.128.062005

Abstract

High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π^{+} SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q^{2} ranging from 1-7 GeV^{2}. In particular, the structure function ratio F_{LU}^{sinϕ}/F_{UU} has been determined, where F_{LU}^{sinϕ} is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.

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Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π^{+} Electroproduction off Protons in the Valence Region

Affiliations

Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π^{+} Electroproduction off Protons in the Valence Region

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Research Materials

Miscellaneous